<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            width: 200px;
            height: 55px;
            text-align: center;
            line-height: 55px;
            color: #fff;
            background-color: pink;
            /* 倾斜效果 */
            transform: skewX(-20deg);
        }

        .card {
            position: relative;
            width: 240px;
            height: 280px;
            margin: 50px;
        }
        .card div {
            position: absolute;
            top: 0;
            left: 0;
            width: 240px;
            height: 280px;
            border-radius: 0px 30px 40px 40px;
            transform-origin: top left;
        }
        .card .front {
            z-index: 1;
            background-color: rgba(0,0,0,0.4);
            /* 滤镜 */
            backdrop-filter: blur(30px);
        }
        .card .back {
            background-color: purple;
            transform: skewY(8deg);
            transition: all 0.3s;
        }
        .card:hover .back {
            transform: skewY(16deg);
            width: 200px;
        }
        .card:hover .front {
            transform:  translateY(-3px);
        }
    </style>
</head>
<body>
    <div class="box">英雄联盟</div>

    <div class="card">
        <div class="front"></div>
        <div class="back"></div>
    </div>
    </body>
</html>